Late Energy Injection and Cosmological Constraints in Axino Dark Matter Scenarios
arXiv:0909.3293 · doi:10.1016/j.physletb.2009.10.094
Abstract
Taking into account effects of late energy injection, we examine big bang nucleosynthesis (BBN) constraints on axino dark matter scenarios with long-lived charged sleptons. We calculate 4-body slepton decays into the axino, a lepton, and a quark-antiquark pair since they govern late hadronic energy injection and associated BBN constraints. For supersymmetric hadronic axion models, we present the obtained hadronic BBN constraints and show that they can be more restrictive than the ones associated with catalyzed BBN via slepton-bound-state formation. From the BBN constraints on hadronic and electromagnetic energy release, we find new upper limits on the Peccei-Quinn scale.
8 pages, 5 figures; minor additions and changes, small changes to Figure 2, typos corrected, references added, matches published version
References in corpus (14)
- Wilkinson Microwave Anisotropy Probe (WMAP) Three Year Results: Implications for Cosmology
- Big-Bang Nucleosynthesis and Gravitino
- Big Bang Nucleosynthesis Constraints on Hadronically and Electromagnetically Decaying Relic Neutral Particles
- Particle physics catalysis of thermal Big Bang Nucleosynthesis
- Constraints on the Reheating Temperature in Gravitino Dark Matter Scenarios
- Bound-State Effects on Light-Element Abundances in Gravitino Dark Matter Scenarios
- Dark Matter Candidates - Axions, Neutralinos, Gravitinos, and Axinos
- Bounds on long-lived charged massive particles from Big Bang nucleosynthesis
- Cosmological implications of supersymmetric axion models
- Gravitino Dark Matter and the Cosmic Lithium Abundances
- Big-Bang Nucleosynthesis Reactions Catalyzed by a Long-Lived Negatively Charged Leptonic Particle
- Determining Reheating Temperature at Colliders with Axino or Gravitino Dark Matter
- Upper Limits on the Peccei-Quinn Scale and on the Reheating Temperature in Axino Dark Matter Scenarios
- The long-lived stau as a thermal relic
Cited by in corpus (12)
- Dark matter production in the early Universe: beyond the thermal WIMP paradigm
- Axino Cold Dark Matter Revisited
- Metastable GeV-scale particles as a solution to the cosmological lithium problem
- Effective interactions of axion supermultiplet and thermal production of axino dark matter
- Axions and saxions from the primordial supersymmetric plasma and extra radiation signatures
- Effective Supersymmetry at the LHC
- Thermal leptogenesis and the gravitino problem in the Asaka-Yanagida axion/axino dark matter scenario
- New results on catalyzed BBN with a long-lived negatively-charged massive particle
- Cosmology with Long-Lived Charged Massive Particles
- Axinos in Cosmology and at Colliders
- Direct stau production at hadron colliders in cosmologically motivated scenarios
- Super-Natural MSSM